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Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:Zn2+, Fe2+, Cl−, O2−

Question

Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:Zn2+, Fe2+, Cl−, O2−

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Solution

  1. ZnCl2: This compound is formed by Zinc (Zn2+) and Chlorine (Cl-) ions. Since Zinc has a charge of +2 and Chlorine has a charge of -1, we need two Chlorine ions to balance the +2 charge of Zinc. Hence, the empirical formula is ZnCl2.

  2. ZnO: This compound is formed by Zinc (Zn2+) and Oxygen (O2-) ions. Both Zinc and Oxygen ions have charges of 2 (but opposite signs), so we need one of each to balance the charges. Hence, the empirical formula is ZnO.

  3. FeCl2: This compound is formed by Iron (Fe2+) and Chlorine (Cl-) ions. Since Iron has a charge of +2 and Chlorine has a charge of -1, we need two Chlorine ions to balance the +2 charge of Iron. Hence, the empirical formula is FeCl2.

  4. FeO: This compound is formed by Iron (Fe2+) and Oxygen (O2-) ions. Both Iron and Oxygen ions have charges of 2 (but opposite signs), so we need one of each to balance the charges. Hence, the empirical formula is FeO.

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